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authorTorvald Riegel <triegel@redhat.com>2013-10-08 14:17:01 +0300
committerTorvald Riegel <triegel@redhat.com>2014-04-10 21:22:28 +0200
commit6a5d6ea128153f5a00d8c80f15f76004006767da (patch)
tree74bf61305b9ec52b30373226cf7a1fcbcec8d27c /malloc
parenta4c75cfd56e536c2b18556e8a482d88dffa0fffc (diff)
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benchtests: Add pthread_once common-case test.
We have a single thread that runs a no-op initialization once and then repeatedly runs checks of the initialization (i.e., an acquire load and conditional jump) in a tight loop. This gives us, on average, the best-case latency of pthread_once (the initialization is the exactly-once slow path, and we're not looking at initialization-related synchronization overheads in this case).
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